The first Alpina car officially imported to the US was the Alpina Z8. There were a number of Alpina cars (E12's, E28's, E24's, E21's and E30's) that were imported during a window in the 80's. For a few years, the favorable exchange rate and the import regs made it possible to import one at a slight premium to a US spec M car of the same series. For example my 1984 Alpina B9 was imported new to the US. It got big bumpers, US spec lights, instrumentation, and cats to pass DOT, all of which were removed shortly thereafter. According to the Alpina registry there were 200 B9's produced, 5 of which came to the states, 2 of which still have active registration. In the late 80's, the window closed for the gray market in the US and it became very expensive to pass DOT requirements. As far as the Alpina VIN's go, Alpina became a manufacturer of record (for German tax advantages) in the mid 80's. They did not begin to use the Alpina mfg. VIN until late 85, so earlier models (E12's, E21's E28's and E24's thru 85) do not have Alpina VIN's. They do however have registration numbers, mfg.id plates, and other discerning identifiers (Alpina stamp on the block, etc.). If you have specific questions, try the Alpina discussion group at www.m5board.com. Lots of experts there.